Vocabulary
Every quadratic equation has a U-shaped graph called this.
What is parabola?
y = x2 - 3x + 1
What is standard form?
Name the vertex y= (x-3)2 +4
What is (3,4)?
Graph the equation. Must include vertex, and at least one point on each side. y=(x-5)(x-1)
What is graph on board?
The point where the parabola and the axis of symmetry intersect.
What is the vertex?
y = 2 (x - 5)² + 6
What is Vertex form?
Name the Vertex y= (x+1)2 - 8
What is (-1, -8)?
Graph the equation. Must include vertex, and at least one point on each side. y=(x+2)(x-2)
What is graph on board?
Minimum Value
y = 5x2 + x - 1
What is standard form?
Name the y-intercept. y=x2 - 4
What is (0, -4)
Name the Vertex y=(x+4)(x-4)
What is (0,-16)?
Graph the equation. Must include vertex, and at least one point on each side. y=(x+1)2 - 2
What is graph on board
This is the number before the x2 that determines whether a parabola opens up or down.
What is the leading coefficient?
y = 2(x-1)(x+7)
What is intercept form?
Name the y-intercept y=x2 - x - 2
What is (0, -2)?
Name the vertex x2 - 4x - 5 = 0
What is (2,-9)?
Graph the equation. Must include vertex, and at least one point on each side. y=(x-4)2 + 3
What is graph on board.
The line that runs through the vertex and divides the parabola in half.
What is axis of symmetry?
y = - 1/2 (x + 7)2 - 4
What is vertex form?
Name the y-intercept. y= (x-1)2 + 1
What is (0, 2)?
Name the vertex 2x2 + 4x - 6 = 0?
What is (-1,-8)?
Graph the equation. Must include vertex, and at least one point on each side. y=-x2 -6x + 1
What is graph on board